Once a year, in Yom Kippur (the Day of Atonement),Aaron was allowed to come into the Holy of Holies, the most sacred part of the tabernacle, or sanctuary, in which the Hebrew tribes worshipped, bringing his offering.

Together with this sister, Miriam, Aaron spoke againstMoses because he had married a foreigner (a Cushite woman);but as in the episode of the golden calf, the narrative tells how Aaron was merely reproved, though Miriam was punished, for the offense.In the rebellion of Korah the Levite, however, Aaron stood firmly at the side of Moses.

According to Numbers 20, Aaron died on the top of Mt. Hor at the age of 123;in Deuteronomy 10, which represents another tradition, he is said to have died in Moserah and was buried there.

Aaron is a central figure in the traditions about the Exodus, though his role varies in importance.At the beginning he seems to be coequeal with Moses, but after the march out of Egypt he is only a shadow at Moses’ side.Moses is obviously the leading figure in the tradition, but it is also clear that he is pictured as delegating his authority in all priestly and cultic matters to Aaron and “his son.”